Car-brake



(N Model.) s sheets-sheet 1.

T. H. BURRIDGE.

GAR BRAKE.

No. 383,387. Patented May 22, 1888.

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y Waal/@f (No Model.) 3 Sheets-Sheet 2'.

T. H. BURRIDGE.

GAR BRAKE.

Patented May 22, 1888.

(NoModel.) 3 Sheets-Sheet 3.

T. H. BURRIDGE.

` GAR BRAKE.

No. 383,387. Patented May 22, 1888.

UNITED dTaTns PATENT Trice.

THOMAS H. BURRIDGE, OF ST1 LOUIS, MISSOURI.

CAW-BRAKE..

SPECIFICATION forming part of Letters Patent No, 383,387, dated May 22, 1883.

Application filed December 16, 1887. Serial No. 258,097.

To @ZZ whom t may concern:

Be it known that I, THoMAs H. BURRIDGE, of the city of St. Louis, in the State of Mis souri, have invented a certain new and useful Improvement in CarBrakes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification,

and in which- Figure Iis a bottom view of a street-car with myimproved brake applied. Fig. II is a verti cal transverse section taken on line II II, Fig. I. Fig. III is a Vertical longitudinal section taken on line III III, Fig. I. Fig. IV isa similar` view, but showing an additional feature consisting of a means for insuring a positive release of the brake. Fig.V is an enlarged detail perspective View showing the frictiondisks, sleeve, and cam. FigVI is an enlarged detail elevation showing one of the frictiondisks and part of the sleeve. Fig. VII is a similar view to Fig. V, except that it shows fiat plain friction-disks instead of flanged and conical.

My invention relates to an improved brake intended more particularlyforstreetrars, but which may be applied to other cars; and my invention consists in features of novelty hereinafter fully described, and pointed outin the claims.

Referring to the drawings, 1 represents the body of a car, 2 the wheels, and 3 the axles.

4 represents the windingshaf ts ofthe brake.

On one or both of the axles (I will describe the construction of the device in connection with one of the axles) is aiixed disk, 5, preferably having a collar or hub, G, on its outer face. l have shown the disk keyed to the axle at 7. This disk may have a iiange, 8, as shown in Fig. V, or may be plain, as shown in Fig. VII. If the iiange is used, it will be made tapering on its :inner surface, as shown in Fig. V.

9 represents a second disk formed upon or secured to a sleeve, 10. This disk may have a tapering periphery, as shown in Figs. Vand IV, or it may be made plain, as shown in Fig. VII. It will be made tapering when used in connection with the llanged disk 5 and made plain when used in connection with the plain disk 5. The sleeve 10 is loose upon the axle and movable endwise thereon. At it-s outer No model.)

end it is provided with an inclined surface, 12. (Shown most clearly in Fig. VI.) At this end of the sleeve and surrounding the axle is a cam, 13, loose upon the shaft, but held from movement away from the sleeve by means of a dat collar, 14, on the axle. The cam 13 is kept from turning on the axle by means |of an arm or projection, 15, by which it is secured to the body of the car, as shown at 16 in Fig. II. The working-face of the cam corresponds in shape with the incline or projection 12 on the sleeve 10.

17 represents an arm on the sleeve 10, to which the pull-rod and chain 18 are secured at one end, the other end being connected to the windingshaft 4.

The operation is as follows: When the brake is t0 be applied, the shaft 4 is turned, pulling on the rod and chain 18. In doing this the sleeve 10 is turned and the incline 12, bearing against the cam 13, forces the sleeve and its disk 9 over into frictional contact with the disk 5, thus applying the brake. As soon as the power is removed from the shaft 4 the sleeve will move back to its normal position and the brake will be released.

I have described the operation of the brake on one of the axles, but the other axle may be provided with a similar arrangement, in which case the sleeve 10 would be provided with an additional arm, 19, similar to that 17', which would be connected by means of a rod, 20, to an arm, 2l, on the sleeve 10 on the other axle, (see Fig. I,) this sleeve being arranged the same as and having the accompanying parts already described in connection with the other sleeve.

rIhe arm 21 may have a pull-rod and chain, 22, connecting it to the windingshaft 4 at the other end ofthe car.

In case it should be found necessary to have a positive means for removing the brake, it may be easily accomplished by extending the arms 17 and 21 downward beneath the sleeves, Connecting them by means of a rod, 23, and connecting the extension of the arm 17 to the shaft 4 by means of a rod and chain, 24. (See Fig. IV.)

I claim as my invention-- 1. In combination with the axle oi a streetcar, a iixed disk, a movable disk, sleeve on the ICO axle, to which the movable disk is secured, stationary earn on the axle in Contact with one end of the sleeve, and means for turning the sleeve to apply the brake, substantially as and for the purpose set forth.

2. In combination with the axle of a ear, a fixed disk, the movable disk, sleeve on the axle, a disk secured to the movable sleeve, a stationary cam on the axle, and means for turning the sleeve to apply the brake, said sleeve having an incline on the opposite end from the movable disk, said incline adapted to bear against the cam When the sleeve is turned, substantially as and for the purpose set forth.

3. In combination with the axle of a car, a fixed disk, 5, rigidly secured to the axle, sleeve 10, mounted loosely on the axle, disk 9, formed upon or secured tothe sleeve, eam 13, mounted loosely on the axle, and connected to the bottom of the ear, and collar 14C to prevent end movement of the cam, substantially as and for the purpose set forth.

4. In combination with the axle and body ofthe ear, a fixed disk, 5, sleeve 10, movable disk 9 on the sleeve, arms 17 and 19 on the sleeves, eams13, arms 15, Connecting the cams to the bottom ofthe ear, collars 14 to prevent end movement of the cams, and means for eonnect'ing the arms of the different sleeves and for operating one of the sleeves, substantially as and for the purpose set forth.

THOMAS H. BURRIDGE.

Witnesses:

SAML. KNIGHT, JAs. E. KNIGHT. 

